Carbureter



o. R. HUKLE.

' cAmsuRETE.v APPLICATION FILED AUG164| 1915. RENEWED SIEPT` 26. 1919.

1,340,956. Patented May 25,1920.

UNITED STATES PATENT .OSCAR R. HUKLE, 0F JOLIET, ILLINOIS.

CARBURETER.

1 ,3f/0,956. AApplication. led August 16, 1915, Serial No. 15.765.

To (1U /r/mm it muy confer/1.

le it known that l'. Osoxu R. HUKLE, a, citizen ofthe llnited States ot'America, and a resident ot Joliet, county ot lllill, and State ot'Illinois. have invented certain new and useiul lmprovements inCarbureters, of

which the following is a specification.

The main objeets ot' this invention are to provide a carbureter havingimproved means for regulating the admission of t'uel to the mixingchamber; to provide improved means for et'eeting a uniform mixture of@the oil and air in the mixing chamber; and to provide an improvedarrangement of these .means on the `arbureter easing.

v An illustrative embodiment ot' this invention is shown in theaccompanying drawing, in which AFigure l is a sectional elevation of theimproved earbureter.

Fig,y 2 is a plan ot the valve mechanism which'feontrols the air inletsand also operates to facilitate mixing the air and oil.

Fig. 3 is .a side elevation ot' the. same.

`ln the construction shown in the drawings, the carbureter comprises acylindrical easing 1 having a transverse partition 2 subdivding it intoan air chamber 3 and a mixing chamber l. fuel supply passage 5 extendsin from theside ot the casing and communicates with an axiallv disposedoil inlet 6. controlled b v needle valves 7 and S. A pluralityv ot'apertures 9 are t'ormed in the partition 2 eoncentrimllv ot the oilinlet 6 and constitute the inlets for admitting air to 'themixingchamber. A tuel or gas out-V let 10 at the upper end ot the casingprovides for supplying fuel to the engine.

rl`he needle yvalve'S is in the torni ot' a rod and carries a. member llin the form of a hood rigidly secured thereto so as to move in unisontherewith. The member 11 has a comparatively snug lit within the mixingchamber 4 and is arranged to serve as a valve tor controlling theadmission of air Jfrom the air chamber 3 through aperturesflintothe'space within the hood. The member subdivides the mixingchamber 4 between the inlets'5 and 0 and the outlet 10 into twocompartments. Apertures 12 are formed in the member 11 through whichthe, air and -oil pass from the compartment belowl the :member to thecompartment above. Vanes 13 are arranged on the exterior ot the member11 adjacent to the apertures 1'2 and are`so shaped that the streams ,ofair Specification of Letters Patent.

Patented May 25, 1920.'v Renewed September 26, 1919. `Serial No.326,563.

drawn through the apertures 12 strike the vanes and cause the member torevolve, thereby facilitating' the uniform mixing of air and oil.

The valves 8 and 11 are gravtyfactuated and the upper part 14 of thestem 8` isA slidably mounted in the cover 15 of the casing 1 so as toguide the valves in their vert-ical movements. *Y

A block or cam member 16, arried on' rods 1T and 18, is slidably mounted0n the cover 15 between lugs 19 and 20. A cam surt'ace 21 is formed onthe under sidev of the member 16 and arranged to coat-t with the taperedend 22 ot' the stem ll for limit-l ing the upward movement of the valves8 and 11. A spring Q3 normally urges the cam member 16 into a retractedposition and a centrifugal governor 21 shifts the cam member 16 againstthe action of the spring 23.

The specific. form of governor shown herein comprises a wheel or pulle)v25 journaled on a shat't 26 secured to the lug 19 and provides a bearingfor the rod 1T. Bell. crank levers 2T are pivoted on the wheel andweighted at onel end b'v balls QS, and connected at their other ends toa cap 29. The cap 29 embraces the end ot' the rod 1T which is shittedinwardl)r through the action of the balls 2S being urged` out\\'ardl vdurinnr the rotation ol the wheel 25. The wheel 2e` is provided with agroove 30 so that it may be connected by means of a belt to the engine.

The spring 23 embraces the rod 1S and is interposed between the cammember 16 and the end ot a bolt Ell threaded into the lug Q0. The bolt3l. is provided with a head 32 bv means ot' which it is turned f0r thepurpose ot' adjusting the tension of the springr 23.

The needle valve 7. is mounted in thel 'usual manner in the bottom ot'the casing l. and is provided with an arm 33, which is adapted to coactwith a dial (not shown) formed around the lower edge 31 of the casing 1for indicating the flow of oil which is permitted b v the valve 7.

The operation of the device shown is as' follows A The suction ot' theengine causes fuel t0 'be drawn from the mixing chamber 4, which tendsto create a vacuum therein. This causes the valves 8 and 11 to elevateso as to admit oil and air within the hood 11 through the oil inlet 6and the apertures S) respectively.' rllhe oil and nir then pass throughthe apertures 12 into the mixing chamber l and in so doing strike thevanes l?) and cause the hood or valve 11 to rotate, thereby stirring upthe gases and facilitating uniform mixing thereof. I

As the wheel 25 revolves, through its connection with the engine, theballs 28 are urged outwardly causing the levers 27 to act on the cap 29and, through the rod 17, urge the cam member 16 against the spring 23.As soon as vthe engine exceeds a certain predetermined speed, the actionof the balls 28 is increased so as to cause the cam member 16 to beshifted to bring a lower portion olf the cam member 21 over the rod 14n.This diminishes the elevation allowed the valves 8 and l1, and decreasesthe quantity ot oil and air admitted into the mixing chamber et, andaccordingly decreases the strength oit' the mixture admitted to theengine, thereby retarding its action.

As soon as the speed ot the engine decreases to normal, the spring 23overcomes the action ot' the balls- QS and shifts the cam member 1o intoposition to permit a greater elevation of the -Valves 8 and 11.

' Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that numerous details of theconstruction shown may be altered or omitted without departing trom thespirit of this invention as defined by the following claims.

I claim l. A carbureter, comprising a casing provided With a mixingchamber and having an oil inlet and a plurality of air inlets'coiwentrically arranged with respect thereto, a gravity actuated valvemember subdivlding said chamber into two compart- ,ments and arranged toopen and close said air inlets `so as to control the admission of airfrom one to the other of said compartments, and a needle Valve carriedby said member and arranged to control the admis- Sion of oil throughsaid oil inlet, said mene ber having a plurality of apertures providingcommunication between said compartments.

2. "A carbureter, comprising a casing provided with a mixing chamber andhaving an oil inlet and a plurality of air inlets concentricallyarranged Awith respect there to, a revoluble valve member subdividingSaid chamber into two compartments and arranged to open and close saidair inlets so'as to control the admission oi: air to said mixingchamber, a valve carried by said member and arranged to control 'theadmission of oil through said oil inlets,

said member having a plurality of apertures providing communicationbetween said compartments, and vanes arranged on said member adjacent tosaid apertures, whereby the air and oil passing therethrough will causesaid member to revolve.

3. A carbureter, comprising a easing provided with a mixing chamber andhaving an oil'iniet and an air inlet, a bell-shaped reciprocating valvemember having apertures therethrough and dividingsaid chamber into twocompartments and controlling the air inlet, a valve controlling the oilinlet and operable in connection with the operation of said member, saidmember and valve being arranged to admit air and oil into the mixingchamber on the concave side of said member.

Signed at (lhicago this l-lth day oi' August, 1915.

OSCAR lt. ll U llil.

